Synthesis and Characterization of ATiO3 (A = Ca, Sr and Ba) Perovskites and Their Photocatalytic Activity Under Solar Irradiation

被引：46

作者：

Arbuj, Sudhir S. ^{[2
,3
]}

Hawaldar, Ranjit R. ^{[3
]}

Varma, Saul ^{[1
]}

Waghmode, Suresh B. ^{[2
]}

Wani, Bina N. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India

[2] Univ Pune, Dept Chem, Pune 411007, Maharashtra, India

[3] Ctr Mat Elect Technol, Pune 411008, Maharashtra, India

来源：

SCIENCE OF ADVANCED MATERIALS | 2012年 / 4卷 / 5-6期

关键词：

Photocatalyst; Perovskite; Methylene Blue; Degradation; TIO2; PHOTOCATALYSIS; DEGRADATION; WATER; TECHNOLOGY;

D O I：

10.1166/sam.2012.1320

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

ATiO(3) (A = Ca, Sr and Ba) catalysts were synthesized by ceramic route and characterized using X-ray diffraction, diffuse reflectance UV-visible spectroscopy, scanning electron micrograph and BET surface area measurement techniques. CaTiO3 showed orthorhombic whereas, SrTiO3 and BaTiO3 showed cubic crystal structure respectively. The photocatalytic activity of the as synthesized materials was evaluated by following the degradation of the aqueous methylene blue solutions under solar irradiation. Calcium titanate showed a highest photocatalytic activity as compared to other titanates. The photocatalytic activity was found to be dependent on a combination of different properties of the sample, such as the crystal structure, the particle size and band gap.

引用

页码：568 / 572

页数：5

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